IVF clinics in London UK

Louise • Hi. I`m Louise, 33, got married November 2014, started TTC #1 December 2015. Work with babies. Now it`s my turn!
My husband and I have been told we need <a href="https://glowing.com/glow-fertility-program">IVF</a>. Due to the wonderful NHS refusing to fund me as my BMI is too low, his parents have amazingly offered to pay for a cycle for us. I was just wondering if anyone had advice about clinics in London, stories to share etc. Would be really grateful for any help as we start this journey. Thanks